CI pipelines also on non-MR branches

.gitlab-ci.yml

@@ -49,7 +49,7 @@ check-copyrights:
   rules:
     - if: $CI_MERGE_REQUEST_ID
     - if: $CI_COMMIT_TAG
-    - if: $CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH
+    - if: $CI_COMMIT_BRANCH
   allow_failure: true
 
 ##########################################################
@@ -65,7 +65,7 @@ check-clang-format:
   rules:
     - if: $CI_MERGE_REQUEST_ID
     - if: $CI_COMMIT_TAG
-    - if: $CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH
+    - if: $CI_COMMIT_BRANCH
   allow_failure: true
 
 
@@ -91,7 +91,7 @@ check-clang-format:
   rules:
     - if: $CI_MERGE_REQUEST_ID
     - if: $CI_COMMIT_TAG
-    - if: $CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH
+    - if: $CI_COMMIT_BRANCH
   cache: 
     paths:
       - ${CI_PROJECT_DIR}/build/
@@ -133,7 +133,7 @@ config-clang-8:
       when: manual
     - if: $CI_COMMIT_TAG
       when: manual
-    - if: $CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH
+    - if: $CI_COMMIT_BRANCH
       when: manual
   allow_failure: true
   cache: 
@@ -182,7 +182,7 @@ build-clang-8:
       when: manual
     - if: $CI_COMMIT_TAG
       when: manual
-    - if: $CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH
+    - if: $CI_COMMIT_BRANCH
       when: manual
   allow_failure: true
   artifacts:
@@ -295,7 +295,7 @@ build_test-clang-8:
       when: manual
     - if: $CI_COMMIT_TAG
       when: manual
-    - if: $CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH
+    - if: $CI_COMMIT_BRANCH
       when: manual
   allow_failure: true
   artifacts:
@@ -349,7 +349,7 @@ example-clang-8:
     - if: '$CI_MERGE_REQUEST_ID && $CI_MERGE_REQUEST_TITLE =~ /^WIP:/'
       when: manual
       allow_failure: true
-    - if: $CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH
+    - if: $CI_COMMIT_BRANCH
     - if: $CI_MERGE_REQUEST_ID
     - if: $CI_COMMIT_TAG
       when: manual
@@ -410,6 +410,7 @@ build_test_example-clang-8:
     - if: $CI_COMMIT_TAG
       when: manual
     - if: $CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH
+    - if: $CI_COMMIT_BRANCH
       when: manual
   allow_failure: true
   cache: